feat: add item dumper

src/dumper/dumper.cs

@@ -21,15 +21,24 @@ struct CharacterInfo
     public string iconFilePath;
 }
 
+struct ItemInfo
+{
+    public string id;
+    public string name;
+    public string iconFilePath;
+}
+
 class Dumper
 {
     private DefaultFileProvider? _provider;
     private IAesVfsReader? _dataPak;
-    private readonly Dictionary<int, CharacterInfo> _characterMap = new();
     private Logger _log;
 
     private string _outDir;
 
+    private readonly Dictionary<int, CharacterInfo> _characterMap = new();
+    private readonly Dictionary<string, ItemInfo> _itemMap = new();
+
     public Dumper(string outDir)
     {
         _log = new Logger("Dumper");
@@ -160,6 +169,55 @@ class Dumper
         return;
     }
 
+    public void DumpItems()
+    {
+        if (_dataPak == null || _provider == null)
+            throw new InvalidOperationException("Attempted to call dump function without dumper initialization");
+
+        _log.Info("Dumping character icons");
+
+        List<string> itemDBPaths = _dataPak.Files.Keys.Where(x => x.Contains("/ItemDB.uasset", StringComparison.OrdinalIgnoreCase)).ToList();
+
+        foreach (string path in itemDBPaths)
+        {
+            string cleanPath = path.Contains('.') ? path[..path.LastIndexOf('.')] : path;
+
+            if (_provider.TryLoadPackageObject<UDataTable>(cleanPath, out UDataTable? dataTable))
+            {
+                foreach (KeyValuePair<FName, FStructFallback> row in dataTable.RowMap)
+                {
+                    List<FPropertyTag> props = row.Value.Properties;
+
+                    string itemId = row.Key.Text;
+
+                    if (!TryGetProp(props, "Type", out EInventoryItemType itemType) || !TryGetProp(props, "UIData", out FStructFallback uiDataFb))
+                        throw new KeyNotFoundException("Type or UIData was not found.");
+
+                    UIDataStruct uiData = uiDataFb.MapToStruct<UIDataStruct>();
+
+                    if (itemType != EInventoryItemType.Item)
+                    {
+                        _log.Verbose("Ignoring invalid item type ({0})", itemType.ToString());
+                        continue;
+                    }
+
+                    if (uiData.IconAssetList.Length == 0)
+                        throw new InvalidDataException("Item's UIData had no icons");
+
+                    _itemMap[itemId] = new ItemInfo
+                    {
+                        id = itemId,
+                        name = uiData.DisplayName.ToString(),
+                        iconFilePath = uiData.IconAssetList[0].ToString()
+                    };
+                }
+            }
+        }
+
+        WriteJson("items", _itemMap.Values);
+        _log.Info("Dumped all items");
+    }
+
     /*
      * internal helper functions
      */